wireguard-linux/fs/gfs2/bmap.h, branch jd/unified-crypt-queue

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398

2019-06-05T15:37:12Z

Based on 1 normalized pattern(s): this copyrighted material is made available to anyone wishing to use modify copy or redistribute it subject to the terms and conditions of the gnu general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.653000175@linutronix.de Signed-off-by: Greg Kroah-Hartman

gfs2: clean_journal improperly set sd_log_flush_head

2019-05-07T21:39:04Z

This patch fixes regressions in 588bff95c94efc05f9e1a0b19015c9408ed7c0ef. Due to that patch, function clean_journal was setting the value of sd_log_flush_head, but that's only valid if it is replaying the node's own journal. If it's replaying another node's journal, that's completely wrong and will lead to multiple problems. This patch tries to clean up the mess by passing the value of the logical journal block number into gfs2_write_log_header so the function can treat non-owned journals generically. For the local journal, the journal extent map is used for best performance. For other nodes from other journals, new function gfs2_lblk_to_dblk is called to figure it out using gfs2_iomap_get. This patch also tries to establish more consistency when passing journal block parameters by changing several unsigned int types to a consistent u32. Fixes: 588bff95c94e ("GFS2: Reduce code redundancy writing log headers") Signed-off-by: Bob Peterson Signed-off-by: Andreas Gruenbacher

gfs2: Iomap cleanups and improvements

2018-06-04T12:56:51Z

Clean up gfs2_iomap_alloc and gfs2_iomap_get. Document how gfs2_iomap_alloc works: it now needs to be called separately after gfs2_iomap_get where necessary; this will be used later by iomap write. Move gfs2_iomap_ops into bmap.c. Introduce a new gfs2_iomap_get_alloc helper and use it in fallocate_chunk: gfs2_iomap_begin will become unsuitable for fallocate with proper iomap write support. In gfs2_block_map and fallocate_chunk, zero-initialize struct iomap. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson

gfs2: Implement fallocate(FALLOC_FL_PUNCH_HOLE)

2018-01-18T20:15:58Z

Implement the top-level bits of punching a hole into a file. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson

GFS2: Implement iomap for block_map

2017-10-31T13:26:33Z

This patch implements iomap for block mapping, and switches the block_map function to use it under the covers. The additional IOMAP_F_BOUNDARY iomap flag indicates when iomap has reached a "metadata boundary" and fetching the next mapping is likely to incur an additional I/O. This flag is used for setting the bh buffer boundary flag. Signed-off-by: Bob Peterson Signed-off-by: Andreas Gruenbacher

GFS2: Clean up journal extent mapping

2014-03-03T13:50:12Z

This patch fixes a long standing issue in mapping the journal extents. Most journals will consist of only a single extent, and although the cache took account of that by merging extents, it did not actually map large extents, but instead was doing a block by block mapping. Since the journal was only being mapped on mount, this was not normally noticeable. With the updated code, it is now possible to use the same extent mapping system during journal recovery (which will be added in a later patch). This will allow checking of the integrity of the journal before any reply of the journal content is attempted. For this reason the code is moving to bmap.c, since it will be used more widely in due course. An exercise left for the reader is to compare the new function gfs2_map_journal_extents() with gfs2_write_alloc_required() Additionally, should there be a failure, the error reporting is also updated to show more detail about what went wrong. Signed-off-by: Steven Whitehouse

GFS2: New truncate sequence

2010-09-20T10:18:16Z

This updates GFS2's truncate code to use the new truncate sequence correctly. This is a stepping stone to being able to remove ip->i_disksize in favour of using i_size everywhere now that the two sizes are always identical. Signed-off-by: Steven Whitehouse Cc: Nick Piggin Cc: Christoph Hellwig

GFS2: Simplify gfs2_write_alloc_required

2010-07-29T08:36:56Z

Function gfs2_write_alloc_required always returned zero as its return code. Therefore, it doesn't need to return a return code at all. Given that, we can use the return value to return whether or not the dinode needs block allocations rather than passing that value in, which in turn simplifies a bunch of error checking. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse

GFS2: Streamline alloc calculations for writes

2009-01-05T07:39:17Z

This patch removes some unused code, and make the calculation of the number of blocks required conditional in order to reduce the number of times this (potentially expensive) calculation is done. Signed-off-by: Steven Whitehouse

[GFS2] Remove function gfs2_get_block

2008-01-25T08:08:25Z

This patch is just a cleanup. Function gfs2_get_block() just calls function gfs2_block_map reversing the last two parameters. By reversing the parameters, gfs2_block_map() may be called directly and function gfs2_get_block may be eliminated altogether. Since this function is done for every block operation, this streamlines the code and makes it a little bit more efficient. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse